See also:

Lighting dimmer
Permits manual adjustment of the brightness of the instruments and controls to suit the ambient light level. Only operates when the vehicle lighting is on, with the exception of the daytime runnin ...

Checks
Unless otherwise indicated, check these components in accordance with the servicing booklet and according to your engine. Otherwise, have them checked by a PEUGEOT dealer or a qualified workshop. ...

Checking levels
If a level drops significantly, have the corresponding system checked by a PEUGEOT dealer or a qualified workshop. Check all of these levels regularly and top them up if necessary, unless otherwis ...